Typing reperforator



E@ W49, A. P. m GREGORIO 2v4329m3 TYPING REPERFORATOR Filed Jan.. 16, 1946 Patented Sept. 20, 1949 NIT-QED fs'rAfr as 2,482,103 rs; NT orifice 2,482,103 '-TYPINGREPERFoRA'roR iAntonio P. Di Gregorio, United States-Army, `Washington, D. C.

Applicationiai'uary 16, 1946,Serial N. 641,555

(CL-I64-1-13) (orameajanaef the actfofMarch 3,1883; as amended aprneo, 192s; emo. G. 757) l Claims.

1 The invention described herein may be' manu factured and us'ed'by or `for the Government for governmental purposes, without the payment of any royalty thereon,

This invention relates to" Telety'pe j'ninti'rig` g systems, and more particularly to 'improvements 'and Vtypewritten'clfiaracters on the same tape. .'Receiving units of this kind are particularly adaptable for use at message distribution centers because the perforated tape may be used to re- A transmit lthe message Ato one or more stations by means of another unit known as a transmitterdistributor, thus eliminating the necessity for manual transmission by direct keyboard or manuall preparationof perforated tape. The typewritten characterson the tape facilitate identification and distribution of the message tape at the message center. Y 1 l Typing and perforation occur simultaneously,

Ybutl dueto the fact that the vplaten is to the right of theperfora'tion'di'e block, characters are Mftyped tothe rightof their respective perforations. A Y

The printingpperation is controlled by the lloperation of `a main bailQand is independent of the punching operation for perforation.A -I-low- 1 Y ever,' the freeing of the code bars, to enable the code bars to be positionedby theselector for j various code signals, has, heretofore, depended muponthe Yengagement oi the main bail with a voodebar locking lever. This dependence of the positioning of the'codeb'ars Aon the operation of the main bail isl objectionable in that the main bail frequently becomesY jammed and allows the codebar locking lever to prevent positioning of the code'bars. even'though the selector mechanism'and perforating punch continue to operate.

v The jamming of the main bail causes messages fto be mutilated and consequently delayed or even lost.

case of monitoring reperforators used in'semi- This trouble is particularly serious in the automatic teletypewriter systems. The monitoring machines are infrequently observed and several hours of monitor copy may be lost because of Vnflainba-il jamming.

In the operation of punch' 'selection' on a'typing reperforator; thedownwardetroke of the main bail clears the punch selection bell cranks frornthe code bars; then selection of code bars tion to remain cleared and results in the tape being .continually perforated over and over with the same combination, and no printing. Jamming ofthe mainv bail resultsfrom a number `of causes, such as 'improper orfla'ck of 'lubricationa'nd adjustment Yof thmain bail and associated parts, incorrect ribbon replacement,

slightly worn main bail, broken main'bailspring, failure of ribbon reverse mechanism, etc.

VIt is, therefore, an objctof thisinvention to provide means to cause continualV functionngof the code bar locking lever ihdependentlyiof the operation of the main fbail to 'position`the code bars in accordance with incomingsignals'a'nd to cause the tape to be perforatedaccordingly.

A further object is the 'provision on atyping reperforator of a device'to cause acode'barlocking lever to continuallygfuncti'on'independently lof the operation of a main bail' without requiring alteration of the machine.

lThese 'and other 'objects'are 'attained bythe novel construction and arrangementof "parts hereinafter'described'and illustratedin the accompanying drawings, forming a part hereof,` and in which:

Fig. 1 is a perspective view showing 'the'devioe applied to a typingrep'e'rforator;

Fig. 2 is an exploded view'showing' 'details of the device;

Fig. 3A is a'viewshowing an`el'ement ofthe device engaging a code 'bar locking lever.

The view illustratedby Figure 1 isiof a Model FPR-5I-I-'1'93 'typing' reperforator, manufactured by the Teletype Corporation of Chicago, illinois. The power for the performance-"of printing and other functions (except selection, perforating and spacing) isderived from the main b'ail"l2,"which is controlled, through intermediate levers, by' a main bail cam IS mounted on the main' shaft i3. The main bail is designed to' 'periodically move up and down. .On 'the 'down stroke.' the main bail engages the 'projecting portion'l of the code bar locking' lever l1 to move the latter from engagement with the codebars'l s that f the code bars can be positioned'by selecting mechanism to coincide withan-incoming' signal." 'On the up stroke the main bail l2 engages and raises a selected pull baril! to actuate a type .bar l5 to print the selected character. Should the main bail l2 jam vand `not move up or down, the' code bar locking lever will not be moved and the punch for perforating a tape will not be reconditioned in accordance with a desirednew selection of the code bars. Printing telegraph apparatus of this general type has been described in the following U. S. Patents: No. 2,343,882; No. 2,255,794; No. 2,273,910; and No.'i,745',633.

In accordance with this invention, connections are made between the main bail cam I9 on main shaft I3 and the code bar locking.. lever Il so the code bar 'locking 'lever'will be Yperiodically actuated independently of the movements of the main bail.

Fhe main bail shaft I3 has two cams; one cam (not shown) which operates the punch bail arm the other cam I9 which operates the main or printing bail I2. The main bail cam I9 is engaged by a cam roller 20 on cam lever IG (these members vbeing standard parts of a typing reperforator). Fixed to one end of cam lever it is an arm E having a slot 9 receiving a tongue 8 at the lower end of lever 4, which is pivotally mounted on the portion l of a bracket attached to a member of the reperforator. The upper end of lever 4 is adjustably attached to a bar 3 by means of a screw 2|. Adjustably attached to bar 3 by means of a screw 22 is a twisted bar 2 having a recess 23 receiving the upper end of code bar locking lever i1. Once elements 2 and 3 are positioned, the screw 22 ties them together and they operate as a single element for the purposes of this invention. The lever 4 is constantly urged in one direction by a spring H attached to the lever and to a member of the reperforator.

In operation, the main bail cam, (which normally operates the main bail) engages roller 20 to continually oscillate the cam lever I0, and through arm 6, lever 4, bar 3 and bar 2, continually move the code bar locking lever Il into and out of engagement with the code bars.

It will be apparent to those skilled in the art that the main bail i2 can jam only in the down position, and in this position it will not jam anything else, particularly not the main bail shaft. When the main bail does jam it, therefore, will not interfere with the selector mechanism of the machine, nor with the code bar selection. When the main bail jams, ordinarily the code bar locking lever H locks out the punching mechanism from punching out the message. The object of this invention, therefore, is to provide a means 2 for pushing the code bar locking lever Il back and forth in synchonism with the action of the bail cam IS through the action of cam lever IB and the means provided by the invention. In other words, a means is provided which bypasses the main bail cam and continues to oscillate the code bar locking lever in synchronism thus permitting the punching operation to continue after the main bail jams.

The main shaft i3, with the main bail cam fixed thereto, continually rotates, and consequently, cam lever Hl will continually oscillate regardless of the `condition of the main bail. Thus continuous actuation of the code bar locking lever is insured.

From the above description it will be seen that there has been provided a simple and effective attachment for insuring continuous perforation of the tape in a reperforator at all times, even when the main bail jams and printing of characters on the tape is prevented. The above description is to be considered asl illustrative and not limitative of the invention of which modifications can be made without departing from the scope as set forth in the appended claims.

The invention having been described, what is claimed is:

l. In a typing reperforator machine having at least a main bail, a main bail cam, a main bail mechanism actuated by said main bail cam for operating the main bail, a cam lever actuated by said main bail cam, and a code bar locking lever, means for bypassing the action of the main bail comprising a lever p-ivotally mounted on a bracket which is attached to a fixed part of the machine, an arm attached to said lever and loosely engaging one end of the cam lever and actuated thereby, a bar attached to the other end of said lever, an extension of the bar adapted to engage the code bar locking lever of the machine, and a guide for the extension, whereby said locking lever is oscillated in synclnonism with the main bail.

2. In a typing reperforator machine having at least a main bail, a main bail cam, a main bail mechanism actuated by said main bail cam for operating the main bail, a cam lever actuated by said main bail cam, and a code bar locking lever, means for bypassing the action'of the'main bail comprising a lever pivotally mounted on a xed part of the machine, an arm attached to said lever and loosely engaging one end of the cam lever and actuated thereby, a bar attached to the other end of said lever, an extension on the bar adapted to engage the code bar locking lever, and a guide for the extension, whereby said locking lever is oscillated in synchronism with the action of the main bail cam.

3. In a typing reperforator machine having at least a main bail, a main bail cam, a main bail mechanism actuated by the main bail cam for operating the main bail, a cam lever also actuated by the main bail cam, and a code bar locking lever, means for bypassing the action of the main bail comprising a lever pivotally mounted to a xed part of the machine having one of its ends in loose engagement with the cam lever, a bar attached to the other end of said lever having means for engaging said code bar locking lever, and spring means to normally urge the lever in one direction, whereby the lcode bar locking lever is caused to move in synchronism with the action of the main bail cam.

4. An attachment for a typing reperforator machine having a main bail cam, a cam lever actuated by said cam, and a code bar locking lever, comprising a bracket attached to a xcd part of the machine, a lever pivotally mounted on said bracket, means on the `cam lever to actua'te said lever, a bar connected to the lever, and means on the bar to engage the code bar locking lever of the machine for operating it in synchronism with said cam lever oscillations.

5. An attachment for a typing reperforator machine having a main bail cam, a cam lever actuated by said cam, and a code bar locking lever, comprising a lever pivotally supported by a fixed part of the machine, means on the cam lever engaging one end of the lever to actuate the latter, a bar attached to the other end of the level` having means to engage the code bar locking lever to oscillate it in synchronism with the movements of the cam lever, and spring means to normally urge the lever in one direction.

ANTONIO P. DI GREGORIO.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,745,633 Morton Feb. 4, 1930 2,255,794 Lake Sept. 16, 1941 2.273.910 Swan Feb. 24, 1942 2,343,882 Carr Mar. 14, 1944 

